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-rw-r--r--util/xmalloc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/xmalloc.h b/util/xmalloc.h
index a4b4686..6aa9b93 100644
--- a/util/xmalloc.h
+++ b/util/xmalloc.h
@@ -90,7 +90,7 @@ char *x_strdup(const char *, const char *, int)
char *x_strndup(const char *, size_t, const char *, int)
__attribute__((__malloc__, __nonnull__));
void x_vasprintf(char **, const char *, va_list, const char *, int)
- __attribute__((__nonnull__));
+ __attribute__((__nonnull__, __format__(printf, 2, 0)));
/* asprintf special case. */
#if HAVE_C99_VAMACROS || HAVE_GNU_VAMACROS